00283nam a2200109Ia 4500008004100000082001500041100002000056245003600076250001600112260003600128300000900164240913s9999||||xx |||||||||||||| ||und||  a547  GEI/P  aBy T A Geissman 0aPrinciples of organic chemistry  a4th Edition  bCBS PublishersaNew Delhic1992  a945p